Combined desktop abacus and electronic calculator



FIG. 1 is a top plan view of a combined desktop abacus and electroniccalculator showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a left side elevational view, the right side being a mirrorimage; and

FIG. 4 is a front elevational view.

The ornamental design for combined desktop abacus and electroniccalculator, as shown and described.